JDK 11 jdk.internal.jvmstat.jmod - Internal JVM Stat Module

JDK 11 jdk.internal.JVM Stat.jmod is the JMOD file for JDK 11 Internal Jvmstat module.

JDK 11 Internal JVM Stat module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.internal.jvmstat.jmod.

JDK 11 Internal JVM Stat module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Internal JVM Stat module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.internal.jvmstat.

You can click and view the content of each source code file in the list below.

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sun/jvmstat/perfdata/monitor/CountedTimerTaskUtils.java

/*
 * Copyright (c) 2004, 2014, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package sun.jvmstat.perfdata.monitor;

import java.util.*;

/**
 * Utility methods for use with {@link CountedTimerTask} instances.
 *
 * @author Brian Doherty
 * @since 1.5
 */
public class CountedTimerTaskUtils {

    // 8028357 removed old, inefficient debug logging

    /**
     * Reschedule a CountedTimeTask at a different interval. Probably not
     * named correctly. This method cancels the old task and computes the
     * delay for starting the new task based on the new interval and the
     * time at which the old task was last executed.
     *
     * @param timer the Timer for the task
     * @param oldTask the old Task
     * @param newTask the new Task
     * @param oldInterval the old interval; use for debugging output
     *                    purposes only.
     * @param newInterval scheduling interval in milliseconds
     */
    public static void reschedule(Timer timer, CountedTimerTask oldTask,
                                  CountedTimerTask newTask, int oldInterval,
                                  int newInterval) {

        long now = System.currentTimeMillis();
        long lastRun = oldTask.scheduledExecutionTime();
        long expired = now - lastRun;

        /*
         * check if original task ever ran - if not, then lastRun is
         * undefined and we simply set the delay to 0.
         */
        long delay = 0;
        if (oldTask.executionCount() > 0) {
            long remainder = newInterval - expired;
            delay = remainder >= 0 ? remainder : 0;
        }

        timer.schedule(newTask, delay, newInterval);
    }
}

sun/jvmstat/perfdata/monitor/CountedTimerTaskUtils.java

 

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